Modified ubbelohde viscosimeter

Details Modified ubbelohde viscosimeter Modified ubbelohde viscosimeter

1976-03-05

1977-06-14

Queisser, Richard C.

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Viscosity

G01N 1106

Patent

active

040289290

ABSTRACT:
A Ubbelohde viscosimeter is disclosed which is modified according to the present invention by mounting to its reservoir a pressure tube and to the upper ends of the pressure tube and the conventional capillary tube a double three way cock. The cock controls pressure supply to the reservoir, as well as selectively connecting the reservoir to atmosphere. In addition a separate suction tube is provided in association with the reservoir to permit selective withdrawal of material from the reservoir. By this arrangement viscosity measurements of polymer solutions at high temperatures are possible without removing the viscosimeter from the thermostat for cleaning.

REFERENCES:
patent: 2095324 (1937-10-01), Fitzsimons
patent: 3071961 (1963-01-01), Heigl et al.
patent: 3559463 (1971-02-01), Tovrog et al.
patent: 3699804 (1972-10-01), Gassmann et al.
Semimicro Dilution Viscometer in NBS Technical News Bulletin, pp. 158-159, Nov. 1955.

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